Tell the property neighbors to throw the stairs about. Will the neighbors retaliate?

See what he thinks. If the garbage piled at the door is temporarily put away, it should be harmless. Throw it away at once. But if it is piled up for a long time, or there is sewage flowing out of the corridor, and the environmental impact is not treated, it must be said. But I think it's best to communicate with neighbors face to face first, and then find a property if you can't communicate.